813 in, Flange Type Split, Flange Width 1/2 in, For Shaft Type Keyed, Includes (3) Cap Screws, Keyway Height 5/16 in, Keyway Width 5/8 in, Length Less Flange 1.31 in, Bolt Size 5/16 In.Quick Detachable Bushing, Bushing Type Quick Detachable, Bore Bushing Series SK, Bore Diameter 2 7/16 in, Length 1.375 in, Material Steel, Overall Diameter 3.